Home / 5,179,920.84-7,148,379.60-2,857,080.06

Finding the Fourth Proportional to 5,179,920.84, 7,148,379.60 and 2,857,080.06

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Solution

The fourth proportional to 5,179,920.84, 7,148,379.60 and 2,857,080.06 is: 3,942,819.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179,920.84 : 7,148,379.60 = 2,857,080.06 : x
  2. Step 2: Convert to fraction form
    5,179,920.84/7,148,379.60 = 2,857,080.06/x
  3. Step 3: Cross multiply
    5,179,920.84x = 7,148,379.60 × 2,857,080.06
  4. Step 4: Simplify right side
    5,179,920.84x = 20,423,492,816,470.77
  5. Step 5: Solve for x
    x = 20,423,492,816,470.77/5,179,920.84
  6. Step 6: Final answer
    x = 3,942,819.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.